Sorry about this one. No, you know what, we’re not sorry. We’re proud members of the anti-shorts brigade. Go show off your calves walking around town, or at the beach, or really anywhere where it’s okay to wear shorts–anywhere but the office. Break this rule and you risk ending up here.

As much as it pains us to say this (because socks and sandals are one of the most comfortable clothing combinations in existence) they have no place in the office. Why? Well, for one thing it looks ridiculous in a productivity-sapping way. As soon as the day’s over, it’s a different story. Yeah, even Zuck needs to heed this one.

Everybody sweats, but go wipe yourself off in the bathroom, or stick your head in the fridge for a few minutes–nobody wants to see a sweat-soaked cloth sitting on your head. Unless you are John McEnroe and your job is tennis.

This list is by no means complete, so please, share your office wardrobe Don’ts with us in the comments!